Question

if the mean of 5,8,3x+4,5x-9,6,10 is 8 then find x.​

Answer 1

Step-by-step explanation:

according to the question

(5+8+3x+4+5x-9+6+10)/6=8 then

5+8+3x+4+5x-9+6+10=8×6=48

24+8x=48

8x=48-24=24

x=24/8=3

so 3 is your answer

Answer 2

Answer:

mean of 5,8,3x+4,5x-9,6,10 is 8

so,

(5+8+3x+4+5x-9+6+10)/6=8

=>{ (5+8+4-9+6+10)+(3x+5x)}/6=8

=> {(33-9)+8x}/6=8

=> 24+8x=8×6=48

=> 8x=48-24=24

=> x=24/8=3

the value of x=3